A system and method for supplying a backup product in an air separation device, as well as a system and method for supplying a lower-pressure product to a user by means of pressurization of a cryogenic liquid pump during normal operation of an air separation device, i.e., when the cryogenic liquid pump is in the cold standby state. By means of the system and method, a cryogenic liquid product taken from a storage tank is pressurized by the cryogenic liquid pump to produce a lower-pressure product by taking full advantage of the low-speed operation of the cryogenic liquid pump in the cold standby state, and the lower-pressure product is transmitted to product supply lines of a user, to achieve the function of supplying the lower-pressure product to the user. The system and method not only reduce the energy loss of the cryogenic liquid pump in the cold standby state for a long time, but also avoid the bleeding rate of the cryogenic liquid product generated by sending a part of the cryogenic liquid product back to the storage tank, so that the advantage of quickly starting the cryogenic liquid pump from the cold standby state is ensured, and the requirements of the user to the higher-pressure product and the lower-pressure product can be satisfied.

The invention relates to a system including a cryogenic container, such as an LNG container or a hydrogen container, with a first removal line for removing cryogenic fluid in a gas phase and a second removal line for removing cryogenic fluid in a liquid phase being routed into the cryogenic container. The system includes a single-piece economizer valve block having at least a first and a second inlet port and an outlet port, the two inlet ports and the outlet port being connected inside the single-piece economizer valve block by a connection passage having a connecting portion on the gas phase side, a connecting portion on the liquid phase side and a connecting portion on the end side, the single-piece economizer valve block having at least one valve recess open towards the outside, the valve recess starting at the node, and a valve being inserted into the valve recess.

A cryogenic container and a heat exchanger for heating cryogenic fluid removed from the cryogenic container, the heat exchanger including a first heat exchanger tube for heating the cryogenic fluid, with a removal line connecting the heat exchanger tube to the cryogenic container, the heat exchanger tube being surrounded by a jacket and the heat exchanger having a medium inlet and a medium outlet for heat exchange medium to flush a heat exchange medium introduced into the medium inlet and removed from the medium outlet around the space between the jacket and the heat exchanger tube, the heat exchanger including a single-piece connection block with a first and a second outer opening and an inner opening, the heat exchanger tube being connected directly to the inner opening of the connection block and a first end of the jacket being attached to the connection block in a fluid-tight manner.

A fuel tank assembly is provided. The fuel tank assembly comprises a fuel tank having an inner volume defined by the fuel tank; and at least one conduit coupled to said fuel tank. The fuel tank is configured to couple to, and fluidly communicate fuel to, a fuel system of a motor vehicle. An inlet of each conduit is configured to fluidly communicate with and receive heat transfer fluid from a heat source and an outlet of each conduit is configured to fluidly communicate with and send the heat transfer fluid to the heat source. The at least one conduit is in thermal communication with an inner volume of the fuel tank for transferring heat from the heat transfer fluid to fuel within the fuel tank.

A vaporizer system includes a defrosting function along with the ability to convert liquefied gas to a use gas. The vaporizer system includes first and second vaporizers and piping that transfers fluid from an inlet port to an outlet port with a portion of the piping being between the first and second vaporizer. The system also includes a trim heater and a number of valves for regulating flow of the fluid through the transfer piping. The valves may be placed in a first configuration where vapor from the first vaporizer is heated and directed to the second vaporizer so that the second vaporizer is defrosted and a second configuration where vapor from the second vaporizer is heated and directed to the first vaporizer so that the first vaporizer is defrosted.

A heat exchange system includes a cold source, a heat dissipation apparatus, a water storage tank, a heating portion, and a cooling portion. The heating portion is coupled between the cold source and the water storage tank. The cooling portion is coupled between the heat dissipation apparatus and the water storage tank. The cooling portion transmits heat of the heat dissipation apparatus to water of the water storage tank to cool the heating portion, and the heating portion transmits heat of the water of the water storage tank to the cold source to heat the cold source.

An apparatus that allows for the distribution of gas from one or more high-pressure tanks into a gas supply system that includes multiple controllers, multiple piping sections, a high-pressure accumulator, a mid-pressure accumulator, a compressor, one or more valves, one or more indirect heaters, and pressure gauges. The controllers controlling the gas supply within the gas supply system and determining which group of valves should provide distribution and control of gas. The gas supply system provides 100% redundancy between one set of valves and the controller and another set of valves and another controller.

A system includes a discharge subsystem with at least one expander stage operable to expand and heat a high-pressure CO2 stream from an existing CO2 pipeline to generate power and output a low-pressure CO2 stream to a storage media. A charge subsystem includes at least one compression stage operable to compress and cool the low-pressure CO2 stream from the storage media and provide a recycle high-pressure CO2 stream to the existing CO2 pipeline. A thermal integration subsystem is in fluid communication with the at least one expander stage and at least one compression stage to provide heating duty and cooling duty for the heating and cooling operations, respectively. The system relies on the existing CO2 pipeline for storage of high-pressure CO2 to provide the benefits described in the disclosure. Related methods are also contemplated.

Liquid cryogen from a tank having a head space pressure P1 is vaporized with a pressure building vaporizer to gaseous cryogen and the pressure of the gaseous cryogen is built to a pressure P2. The pressurized gaseous cryogen at pressure P2 is expanded across an expander to decrease its pressure and fed to a point of use at an installation including the vaporizer at a pressure P3. P22P3. Energy from the expanded gas may be recovered in the form of mechanical energy, electrical energy.

A cold energy power generation system increases the efficiency in utilizing the cold exergy of liquefied gas while freely controlling the gas supply pressure on the outlet side of a secondary expansion turbine. The system includes a pressure-increasing pump for increasing the pressure of a low-temperature liquefied gas to a pre-overboost pressure while maintaining the liquid gas in a liquid state, a Rankine-cycle-type primary power generation apparatus, a heater for heating a vaporized gas, and a direct-expansion-type secondary power generation apparatus. Since the cold exergy of the liquefied gas is more efficiently utilized as pressure exergy than as temperature exergy, the system converts the cold exergy more preferentially to pressure exergy, and the optimal operating conditions that maximize the conversion efficiency can be determined by the composition of the liquefied gas, the temperature of the heating source, and the gas supply pressure.